CN106741687B - It is a kind of to produce conveying riser systems and its installation method from tension type under water - Google Patents
It is a kind of to produce conveying riser systems and its installation method from tension type under water Download PDFInfo
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- CN106741687B CN106741687B CN201611100122.3A CN201611100122A CN106741687B CN 106741687 B CN106741687 B CN 106741687B CN 201611100122 A CN201611100122 A CN 201611100122A CN 106741687 B CN106741687 B CN 106741687B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000009434 installation Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000007667 floating Methods 0.000 claims abstract description 309
- 238000004519 manufacturing process Methods 0.000 claims abstract description 146
- 230000001681 protective effect Effects 0.000 claims abstract description 47
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 230000002459 sustained effect Effects 0.000 claims description 6
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 244000147058 Derris elliptica Species 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 174
- 239000003921 oil Substances 0.000 description 7
- 230000006378 damage Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B35/4413—Floating drilling platforms, e.g. carrying water-oil separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B75/00—Building or assembling floating offshore structures, e.g. semi-submersible platforms, SPAR platforms or wind turbine platforms
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Civil Engineering (AREA)
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Abstract
Conveying riser systems and its installation method being produced from tension type under water the invention discloses a kind of, the system includes production riser component, control riser assemblies, combination floating drum and mooring gear；The combination floating drum includes internal layer floating drum and outer layer floating drum；The multiple standpipe channels of setting in the internal layer floating drum.The outer layer floating drum of the present invention is responsible for providing mooring cable tensile force; each internal layer floating drum is each responsible for providing the top tensile force of corresponding single rigid production riser or rigid protective pipe; realize mooring gear and the vertical stress of all standpipes and the decoupling of movement; the stress between each standpipe and the decoupling of movement are also achieved, the performance requirement in place of rigid production riser is improved.Unified integrate of the hypomere umbilical of the flexible control umbilical of the present invention is assemblied in rigid protective pipe, and problem is destroyed to avoid causing complicated galloping.The internal layer floating drum of the present invention can be freely lifted along the slideway of outer layer floating drum, meet the thermal expansion requirement of rigid production riser.
Description
Technical field
The present invention relates to the dry type production platforms of offshore and gas development technical field, and in particular to one kind being applied to ultra-deep-water
The production riser system and its installation method of dry type production platform under marine environment.
Background technology
Currently, there are two types of the dry type production platforms developed suitable for deep-sea oil gas：TLP platforms and Spar platforms.Dry type is adopted
The adaptive type production riser system of oily platform is top tensioned risers (Top Tensioned Riser, abbreviation TTR).Existing TTR
Structural shape it is vertical using Double-layer sleeve-type standpipe (the outer protection tube, internal layer protection pipe and production delivery pipe) or single layer bushing type
Pipe (the outer protection tube and production delivery pipe).The main function of casing is marine environment caused by preventing the leakage of production delivery pipe
It pollutes unbalance with pressure integrity.Since casing dead weight is much larger than production delivery pipe, Double-layer sleeve-type standpipe and single layer
Bushing type standpipe is required to huge top tensile force and is supported.For TLP platforms, TTR's pushes up master of the tensile force by TLP platforms
Body buoyancy directly takes on, therefore increases size of main body and the dead weight of TLP platforms, limit TLP platforms more deep-sea domain hair
Exhibition application.For Spar platforms, the top tensile force of TTR is undertaken by top buoyancy tank, therefore increases the size of main body of buoyancy can,
Further increase size of main body and the dead weight of Spar platforms.
In order to reduce dead weights of the TTR in the application of ultra-deep sea oil and gas development, document OTC15100 (George Z.Gu, Rod
Myers,Robert Sokoll,Joe Jin,Kevin Huang.Technical Feasibility of Tubing
Risers.Offshore Technology Conference, Houston, 2003.) it has been put forward for the first time a solution.
In the program, the structural shape of TTR only has production delivery pipe, and without the outer protection tube and internal layer protection pipe；Control umbilical is flat
Row or winding are arranged in production delivery pipe outer rim.However, the technical solution has following technical limitation：
1, production conveying standpipe is acted on by disastrous Marine Environmental Elements (high wind, billow and sea high current), production conveying
Standpipe easily interferes, wave causes fatigue damage and VIV fatigue damages etc., and then causes production conveying standpipe that rupture and crude oil occurs
Leakage；
2, the missing of the outer protection tube and internal layer protection pipe causes the axial rigidity for producing delivery pipe to substantially reduce, to meet
The adjacent interference requirement for producing conveying standpipe, need to increase the top design spacing of production conveying standpipe, increase dry type is needed to adopt thus
The floor space of oily platform increases the size of main body of dry type production platform；
3, lack the outer protection tube and internal layer protection pipe, thermal expansion causes to produce delivery pipe elongation 1.2m or so, need thus
Increase the altitude above deck of dry type production platform, increases the size of main body of dry type production platform；
4, the missing of the outer protection tube and internal layer protection pipe leads to control umbilical unprotect channel, control umbilical need it is parallel or
Winding is arranged in the outer rim of production delivery pipe, and then causes to produce the asymmetric of delivery pipe cross section, to cause complicated speed
It shakes destruction problem.
Invention content
In order to solve existing production conveying standpipe the technology above problem, this hair present in the application of ultra-deep sea oil and gas development
Bright to provide a kind of realizing that the underwater of following purpose produces conveying riser systems and its installation method from tension type：
1, production conveying tracheal rupture and crude oil leakage are prevented；
2, it prevents from production delivery pipe from galloping occurs to destroy；
3, reduce the size of main body of dry type production platform.
To achieve the goals above, technical scheme is as follows：
It is a kind of to produce conveying riser systems from tension type under water, including production riser component, control riser assemblies, combination be floating
Cylinder and mooring gear；
The production riser component includes flexible production standpipe and rigid production riser, the control riser assemblies packet
Rigid protective pipe and flexible control umbilical are included, the combination floating drum includes internal layer floating drum and outer layer floating drum；The outer layer is floating
The multiple internal layer floating drums of setting in cylinder；
The outer layer float body is cylindrical structure, and outer layer floating drum outer wall lower edge connects four cantilever floating drums,
Four cantilever floating drums are evenly distributed, and radially, cantilever floating drum end uses truss cantilever, the outer end connection system of truss cantilever
Hawser is moored, outer layer floating drum is by four mooring cable moorings in the pile foundation of sea bed；Multiple cylinders are vertically arranged in outer layer floating drum
Channel, for installing multiple internal layer floating drums；Cylindrical channel inner wall is uniformly distributed along the circumference four vertical slideways, and slideway is through entire circle
Cylindrical passageway inner wall；Inner wall center between adjacent two slideway highly locates that limit body A is arranged from outer layer floating drum bottom end 1/3；
The internal layer float body is cylindrical structure, and outer diameter is less than the diameter of cylindrical channel, outside internal layer floating drum
Wall is uniformly distributed along the circumference four vertical bossy bodies, and bossy body width B1 is less than the width B of the slideway in cylindrical channel, bossy body with
Internal layer floating drum is contour；The bossy body is located in the slideway in cylindrical channel；In outer wall between adjacent two bossy body
Centre, from being provided with limit body B at 1/2 height of internal layer floating drum bottom end, limit body B and the limit body A phases being located in cylindrical channel
Cooperation limits the relative vertical motion of internal layer floating drum and outer layer floating drum；
The top of the rigid production riser passes through the standpipe channel of internal layer floating drum, and is connect with internal layer floating drum top；
The bottom end of the rigid production riser connects stress joint, and the bottom end of stress joint connects subsea wellheads globe valve；Described
Well head globe valve and the oral connection of submarine well, and integrated control module A；The well head globe valve is in the operating condition, and rigid
Property production riser unicom；It is in case of emergency rotated by 90 °, closes rigid production riser and the oral interface channel of submarine well；Institute
The bottom end for the flexible production standpipe stated is connect with rigid production riser top, and the top of the flexible production standpipe is adopted with dry type
Oil tree connection；The dry type tree is located on the deck of dry type production platform；
The top of the rigid protective pipe passes through the standpipe channel of internal layer floating drum, and is connect with internal layer floating drum top；Institute
The flexible control umbilical stated is made of epimere umbilical and hypomere umbilical, the rigid protective pipe for hypomere umbilical provide installation with
Protect channel；Umbilical connector is arranged in the rigid protective tube top end, and epimere umbilical is connected with hypomere umbilical by umbilical connector；
The rigid protective tube bottom end is connect with stress joint, and the bottom end of stress joint is connect with control module B, control module B's
Bottom end is fixed on rigid protective pedestal tube；The flexible control umbilical carries out well for controlling underground chemical reagent injection
Lower pressure and temperature information acquisition control the closure of storm valve and control the closure of well head globe valve；The flexibility
The top of control umbilical is connect with control centre, its bottom end is connect across rigid protective pipe with control module B；In the control
The heart is located on the deck of dry type production platform；
The outer layer floating drum is connect with mooring gear；
It is connected by fly line between the control module A and control module B, the fly line is signal cable.
Further, one group of two to four group of correspondence production riser component of the control riser assemblies.
Further, the combination floating drum floating drum is immersed in 30~200m depths under sea.
Further, there are two drum apparatus for bossy body front setting, are located at bossy body front long side
At two trisection height, the drum apparatus is made of roller, shaft and bearing, and shaft axis is perpendicular to protrusion side
Face, standoff length is equal with the positive width B1 of bossy body, and roller is mounted on by shaft on bearing；Roller is rolled with slideway bottom surface
Dynamic contact.
Further, the cantilever floating drum is rectangular section cantilever floating drum.
Further, the cross section of the slideway is rectangular section；The cross section of the bossy body is rectangular section.
Further, the limit body A is cuboid, has 4 in each cylindrical channel, along cylindrical channel
Wall is circumferentially uniformly distributed, and is at cylindrical channel inner wall sustained height；The limit body B is cuboid, each internal layer floating drum
On have 4, it is circumferentially uniformly distributed along internal layer floating drum outer wall, and be at internal layer floating drum outer wall sustained height；When internal layer floating drum and outside
When the center of layer floating drum etc. is high, there are 1 to 2 meter of spacing between limit body B and limit body A.
A kind of installation method producing conveying riser systems from tension type under water, includes the following steps：
A, preparation work：
A1, by outer layer floating drum lifting be placed on semi-submerged ship main deck, then by internal layer floating drum be hung to cylindrical channel just on
Side adjusts position and the angle of internal layer floating drum, until four bossy bodies of internal layer floating drum are respectively aligned to four on cylindrical channel
Slideway, internal layer floating drum is transferred to cylindrical channel；
A2, A1 step operations are repeated, is sequentially completed the in place of all internal layer floating drums；Internal layer floating drum and outer layer floating drum are on the coast
Combination is completed, and combination floating drum is constituted；
B, the in place and sinking of combination floating drum：
B1, infield is towed to by floating drum is combined using semi-submerged ship, each workboat is in place；It is connected on outer layer floating drum normal
Hawser and the anchor chain etc. of installation exercise method are advised, semi-submerged ship pressurization is carried underwater heavy and opened from combination floating drum is floating across the sea；
The B2 while water filling into each internal layer floating drum ballast tank, internal layer floating drum slowly sink under the effect of gravity, until interior
Four limit body B on layer floating drum are contacted with four limit body A on outer layer floating drum respectively；Continue to each internal layer floating drum ballast
Cabin is filled to design flow, its gravity G when the ballast water of the design flow makes internal layer floating drum submerge in water completely1Still greater than buoyancy F1,
Outer layer floating drum sinks down into stopping slowly together under the towing of each internal layer floating drum with internal layer floating drum in the process, combines floating drum
It floats across the sea；
It is filled to design flow in B3, outer layers floating drum ballast tank, the ballast water of the design flow makes outer layer floating drum not have completely
Its buoyancy F when entering in water2More than gravity G2, in the process outer layer floating drum under the towing of each internal layer floating drum with internal layer floating drum
Sink slowly together until outer layer floating drum submerges in water completely；
B4, when combine floating drum submerge in water completely when, stress in the vertical direction is：The buoyancy F of outer layer floating drum2
More than its gravity G2, the gravity G of internal layer floating drum1More than its buoyancy F1, and the sum of net buoyancy of all internal layer floating drums N (G1-F1) big
In the net buoyancy F of outer layer floating drum2-G2, wherein N is internal layer floating drum number, i.e. N (G1-F1)>(F2-G2)；In this stressing conditions
Under, internal layer floating drum can pull outer layer floating drum and stablize, and under this stressing conditions, internal layer floating drum can pull outer layer floating drum
Stablize and, and limit body B and limit body A is in close contact in sinking watching, outer layer floating drum does not have relatively with internal layer floating drum
Movement；
C, the underwater installation of floating drum is combined：
After combination floating drum sinks down into target depth, the truss cantilever of outer layer floating drum is connected with corresponding mooring gear, positioning
In sea bed；Outer layer floating drum is filled with compressed gas, and outer layer floating drum floats, and is tensioned mooring cable；In the process, limit body A and limit
Position body B interactions, internal layer floating drum float jointly under the action of outer layer floating drum limit body A；
D, the underwater installation of rigid production riser and rigid protective pipe
D1, rigid production riser is installed one by one：Rigid production riser is lifted by dry type production platform, so that rigidity is produced vertical
The bottom end of pipe passes through the standpipe channel of corresponding internal layer floating drum and well head globe valve and the oral connection of submarine well, rigid production riser top
End is connect with the top of internal layer floating drum；
D2, first the hypomere umbilical of flexible control umbilical is mounted on by umbilical connector in rigid protective pipe, then by dry
Formula production platform lifts rigid protective pipe, and the bottom end of rigid protective pipe is made to pass through standpipe channel and the control mould of corresponding internal layer floating drum
Block B is connect with rigid protective pedestal tube, the top of rigid protective pipe is connect with the top of internal layer floating drum；
Nitrogen is injected in D3, inner layer floating drum, internal layer floating drum is made to float along slideway, while being tensioned rigid production riser and just
Property protection pipe, for internal layer floating drum floating to design position, i.e. internal layer floating drum and the center of outer layer floating drum is contour, limit body B and limit body A
Between there are 1 to 2 meter of spacing；
E, the underwater installation of flexible production standpipe and flexible control umbilical
E1, flexible production standpipe is lifted by dry type production platform, makes flexible production bottom of vertical and rigid production riser
Top connection, flexible production riser top ends are connect with the dry type tree on dry type production platform deck；
E2, flexible control umbilical is lifted by dry type production platform, make the epimere umbilical bottom end of flexible control umbilical with just
Property protection pipe top umbilical connector connection, epimere umbilical top be located at dry type production platform deck control centre connect.
So far, a kind of to be installed under water from tension type production conveying riser systems.
Riser systems are conveyed relative to existing production, the present invention has following significant technological progress：
1, unified integrate of the hypomere umbilical of flexible control umbilical of the invention is assemblied in rigid protective pipe, avoids hypomere
Umbilical avoids the asymmetric of rigid production riser cross section in the arrangement of rigid production riser outer rim, multiple to avoid causing
Miscellaneous galloping destroys problem.
2, combination floating drum of the invention includes outer layer floating drum and internal layer floating drum, internal layer floating drum can along outer layer floating drum slideway from
By lifting, meet the thermal expansion requirement of rigid production riser；Without increasing the altitude above deck and size of main body of dry type production platform.
3, outer layer floating drum of the invention is responsible for providing mooring cable tensile force, and each internal layer floating drum is each responsible for providing corresponding
Single rigid production riser or rigid protective pipe top tensile force, realize the vertical stress of mooring gear and all standpipes with
And the decoupling of movement, also achieve the stress between each standpipe and the decoupling of movement；Therefore, it is acted in external environmental load
Under, combination floating drum shifts, and the secondary distribution of mooring cable and rigid production riser top tensile force, rigidity will not be caused to produce
The top tensile force of standpipe is content with very little service demand in place, improves the performance requirement in place of rigid production riser.
4, the present invention during use, can carry out one of internal layer floating drum (or oil production equipment of upper part installation)
Recycling and repair, without influencing other oil production equipment normal works；Each internal layer floating drum (rigid riser) can be returned successively
It receives, has ensured the safety of removal process.
5, rigid production riser of the invention is located at 30~200m depths under sea, reduces the disastrous ocean ring in sea
Border element (high wind, billow and high current) acts on, and reduces closing well frequency, therefore single well head globe valve can be used as producing well
Device is controlled, without using complicated and high cost production tree as well control device, being in case of emergency rotated by 90 ° can close
The oil-gas transportation channel of rigid production riser is closed, operation is simple and feasible, cheap.
6, the present invention is used as production well control device using single well head globe valve, without using the oil recovery of bulky
Tree, well head globe valve can be carried out at the same time with the installation of rigid production riser, simple to install, shorten installation period, reduce operation at
This.
7, rigid production riser of the invention is located at 30~200m depths under sea, reduces the disastrous ocean ring in sea
Border element (high wind, billow and high current) acts on, and reduces the probability that adjacent rigid production riser collides, while reducing wave
It causes fatigue damage and VIV to cause fatigue damage, rupture and crude oil leakage probability occurs to reduce rigid production riser.
Description of the drawings
The present invention shares attached drawing 10 and opens, wherein：
Fig. 1 is the overall structure diagram (front view) of the present invention.
Fig. 2 is the structural schematic diagram (front view) of the production conveying standpipe and control standpipe of the present invention.
Fig. 3 is the structural schematic diagram of outer layer floating drum.
Fig. 4 is the sectional view of outer layer floating drum.
Fig. 5 is the structural schematic diagram of internal layer floating drum.
Fig. 6 is the sectional view of roller devices.
Fig. 7 is the vertical view for combining floating drum.
Fig. 8 is the detail view that internal layer floating drum is placed among cylindrical channel.
Fig. 9 is the sectional view for combining floating drum.
Figure 10 is internal layer floating drum limit body B and outer layer floating drum limit body A interaction schematic diagrames.
In figure：1, outer layer floating drum, 2, truss cantilever, 3, cylindrical channel, 4, slideway, 5, limit body A, 6, internal layer floating drum,
7, bossy body, 8, limit body B, 9, standpipe channel, 10, roller, 11, shaft, 12, bearing, 14, mooring gear, 15, combination it is floating
Cylinder, 20, sea, 21, sea bed, 22, dry type tree, 23, control centre, 25, dry type production platform, 30, flexible control umbilical,
31, flexible production standpipe, 40, rigid protective pipe, 41, rigid production riser, 42, stress joint, 43, submarine well it is oral, 44, just
Property protection pedestal tube, 45, well head globe valve, 46, control module A, 47, control module B, 48, fly line.
Specific implementation mode
The present invention is further described through below in conjunction with the accompanying drawings.As Figure 1-10 shows, the present invention with have four just
Property production riser and one control standpipe for be described.It is a kind of to produce conveying riser systems, including life from tension type under water
Produce riser assemblies, control riser assemblies, combination floating drum 15 and mooring gear 14；
The production riser component includes flexible production standpipe 31 and rigid production riser 41, the control standpipe group
Part includes rigid protective pipe 40 and flexible control umbilical 30, and the combination floating drum 15 includes internal layer floating drum 6 and outer layer floating drum 1；
Multiple internal layer floating drums 6 are set in the outer layer floating drum 1；
1 main body of outer layer floating drum is cylindrical structure, and it is floating that 1 outer wall lower edge of outer layer floating drum connects four cantilevers
Cylinder, four cantilever floating drums are evenly distributed, and radially, cantilever floating drum end uses truss cantilever 2, the outer end of truss cantilever 2
Mooring cable is connected, outer layer floating drum 1 is by four mooring cable moorings in the pile foundation of sea bed 21；It is vertically arranged in outer layer floating drum 1
Multiple cylindrical channels 3, for installing multiple internal layer floating drums 6；3 inner wall of cylindrical channel is uniformly distributed along the circumference four vertical slideways 4,
Slideway 4 runs through 3 inner wall of entire cylindrical channel；Inner wall center between adjacent two slideway 4, it is high from 1 bottom end 1/3 of outer layer floating drum
Limit body A5 is set at degree；
6 main body of internal layer floating drum is cylindrical structure, and outer diameter is less than the diameter of cylindrical channel 3, internal layer floating drum 6
Outer wall is uniformly distributed along the circumference four vertical bossy bodies 7, and 7 width B1 of bossy body is less than the width B of the slideway 4 in cylindrical channel 3, convex
Go out body 7 and internal layer floating drum 6 is contour；The bossy body 7 is located in the slideway 4 in cylindrical channel 3；In adjacent two bossy body 7
Between outer wall center, from being provided with limit body B8 at 6 bottom end of internal layer floating drum, 1/2 height, limit body B8 with positioned at cylindrical logical
Limit body A5 in road 3 is matched, the relative vertical motion of limitation internal layer floating drum 6 and outer layer floating drum 1；
The top of the rigid production riser 41 passes through the standpipe channel 9 of internal layer floating drum 6, and with the top of internal layer floating drum 6
Connection；The bottom end of the rigid production riser 41 connects stress joint 42, and the bottom end of stress joint 42 connects subsea wellheads ball
Shape valve 45；The well head globe valve 45 is connect with submarine well oral 43, and integrated control module A46；The well head is spherical
Valve 45 in the operating condition, with 41 unicom of rigid production riser；It is in case of emergency rotated by 90 °, closes rigid production riser 41
With the interface channel of submarine well oral 43；The bottom end of the flexible production standpipe 31 is connect with 41 top of rigid production riser,
The top of the flexible production standpipe 31 is connect with dry type tree 22；It is flat that the dry type tree 22 is located at dry type oil recovery
On the deck of platform 25；
The top of the rigid protective pipe 40 passes through the standpipe channel 9 of internal layer floating drum 6, and connects with 6 top of internal layer floating drum
It connects；The flexible control umbilical 30 is made of epimere umbilical and hypomere umbilical, and the rigid protective pipe 40 is hypomere umbilical
Installation and protection channel are provided；Umbilical connector is arranged in 40 top of rigid protective pipe, and epimere umbilical and hypomere umbilical pass through
Umbilical connector connects；40 bottom end of rigid protective pipe is connect with stress joint 42, bottom end and the control mould of stress joint 42
Block B47 connections, the bottom end of control module B47 are fixed on rigid protective pedestal tube 44；The flexible control umbilical 30 is used for
The injection of underground chemical reagent is controlled, down-hole pressure and temperature information acquisition is carried out, controls closure and the control of storm valve
The closure of well head globe valve 45；The top of the flexible control umbilical 30 is connect with control centre 23, its bottom end passes through rigidity
Protection pipe 40 is connect with control module B47；The control centre 23 is located on the deck of dry type production platform 25；
The outer layer floating drum 1 is connect with mooring gear 14；
It is connected by fly line 48 between the control module A46 and control module B47, the fly line 48 is signal wire
Cable.
Further, one group of two to four group of correspondence production riser component of the control riser assemblies.
Further, 15 floating drum of combination floating drum is immersed in the 30~200m depths of sea 20 times.
Further, there are two drum apparatus for the 7 front setting of bossy body, are located at the positive long side of bossy body 7
Two trisection height at, the drum apparatus is made of roller 10, shaft 11 and bearing 12,11 axis of shaft perpendicular to
7 side of bossy body, 12 length of bearing is equal with 7 positive width B1 of bossy body, and roller 10 is mounted on bearing 12 by shaft 11
On；Roller 10 is in rolling contact with 4 bottom surface of slideway.
Further, the cantilever floating drum is rectangular section cantilever floating drum.
Further, the cross section of the slideway 4 is rectangular section；The cross section of the bossy body 7 is cut for rectangle
Face.
Further, the limit body A5 is cuboid, has 4 in each cylindrical channel 3, along cylindrical channel
3 inner walls are circumferentially uniformly distributed, and are at 3 inner wall sustained height of cylindrical channel；The limit body B8 is cuboid, each internal layer
There are 4 on floating drum 6, it is circumferentially uniformly distributed along 6 outer wall of internal layer floating drum, and be at 6 outer wall sustained height of internal layer floating drum；When internal layer is floating
When the center grade height of cylinder 6 and outer layer floating drum 1, there are 1 to 2 meter of spacing between limit body B8 and limit body A5.
A kind of installation method producing conveying riser systems from tension type under water, includes the following steps：
A, preparation work：
A1, the lifting of outer layer floating drum 1 is placed on semi-submerged ship main deck, then internal layer floating drum 6 is being hung to cylindrical channel 3 just
Top, the position of adjustment internal layer floating drum 6 and angle, until four bossy bodies 7 of internal layer floating drum 6 are respectively aligned to cylindrical channel 3
On four slideways 4, by the decentralization of internal layer floating drum 6 among cylindrical channel 3；
A2, A1 step operations are repeated, is sequentially completed the in place of all internal layer floating drums 6；Internal layer floating drum 6 exists with outer layer floating drum 1
Combination is completed on the bank, constitutes combination floating drum 15；
B, the in place and sinking of combination floating drum 15：
B1, infield is towed to by floating drum 15 is combined using semi-submerged ship, each workboat is in place；Connect on outer layer floating drum 1
Hawser and the anchor chain etc. of conventional installation exercise method are connect, semi-submerged ship pressurization is carried underwater heavy and opened from combination floating drum 15 floats on sea
On face 20；
B2 while the water filling into each 6 ballast tank of internal layer floating drum, internal layer floating drum 6 slowly sink under the effect of gravity, until
Four limit body B8 on internal layer floating drum 6 are contacted with four limit body A5 on outer layer floating drum 1 respectively；Continue floating to each internal layer
6 ballast tanks of cylinder are filled to design flow, its gravity G when the ballast water of the design flow makes internal layer floating drum 6 submerge in water completely1It is still big
In buoyancy F1, in the process outer layer floating drum 1 sunk down into slowly together with internal layer floating drum 6 under the towing of each internal layer floating drum 6
Stop, combination floating drum 15 floats on sea 20；
It is filled to design flow in B3,1 ballast tank of outer layers floating drum, the ballast water of the design flow so that outer layer floating drum 1 is complete
Its buoyancy F when submerging in water2More than gravity G2, in the process outer layer floating drum 1 under the towing of each internal layer floating drum 6 with internal layer
Floating drum 6 sinks slowly together until outer layer floating drum 1 submerges in water completely；
B4, when combine floating drum 15 submerge in water completely when, stress in the vertical direction is：Outer layer floating drum 1 floats
Power F2More than its gravity G2, the gravity G of internal layer floating drum 61More than its buoyancy F1, and the sum of net buoyancy of all internal layer floating drums 6 NG1-
F1More than the net buoyancy F of outer layer floating drum 12-G2, wherein N is 6 numbers of internal layer floating drum, i.e. NG1-F1>F2-G2；In this stressing conditions
Under, internal layer floating drum 6 can pull outer layer floating drum 1 and stablize, and under this stressing conditions, internal layer floating drum 6 can pull outer layer
Floating drum 1, which is stablized, to sink, and limit body B8 and limit body A5 is in close contact in sinking watching, and outer layer floating drum 1 and internal layer floating drum 6 are not
Have relative motion；
C, the underwater installation of floating drum 15 is combined：
After combination floating drum 15 sinks down into target depth, the truss cantilever 2 of outer layer floating drum 1 connects with corresponding mooring gear 14
It connects, is positioned at sea bed 21；Outer layer floating drum 1 is filled with compressed gas, and outer layer floating drum 1 floats, and is tensioned mooring cable；In the process,
Limit body A5 interacts with limit body B8, and internal layer floating drum 6 floats jointly under the action of 1 limit body A5 of outer layer floating drum；
D, the underwater installation of rigid production riser 41 and rigid protective pipe 40
D1, rigid production riser 41 is installed one by one：Rigid production riser 41 is lifted by dry type production platform 25, makes rigidity
The bottom end of production riser 41 connect by the standpipe channel 9 and well head globe valve 45 of corresponding internal layer floating drum 6 with submarine well oral 43,
41 top of rigid production riser is connect with the top of internal layer floating drum 6；
D2, first the hypomere umbilical of flexible control umbilical 30 is mounted on by umbilical connector in rigid protective pipe 40, then led to
It crosses dry type production platform 25 and lifts rigid protective pipe 40, the bottom end of rigid protective pipe 40 is made to pass through the standpipe of corresponding internal layer floating drum 6
Channel 9 and control module B47 connect with rigid protective pedestal tube 44, the top on the top of rigid protective pipe 40 and internal layer floating drum 6
Connection；
Nitrogen is injected in D3, inner layer floating drum 6, so that internal layer floating drum 6 is floated along slideway 4, while being tensioned rigid production riser
41 and rigid protective pipe 40, for internal layer floating drum 6 floating to design position, i.e. internal layer floating drum 6 and the center of outer layer floating drum 1 is contour, limit
There are 1 to 2 meter of spacing between body B8 and limit body A5；
E, the underwater installation of flexible production standpipe 31 and flexible control umbilical 30
E1, flexible production standpipe 31 is lifted by dry type production platform 25, keeps 31 bottom end of flexible production standpipe raw with rigidity
The connection of 41 top of standpipe, 31 top of flexible production standpipe and the dry type tree 22 on 25 deck of dry type production platform is produced to connect
It connects；
E2, flexible control umbilical 30 is lifted by dry type production platform 25, makes the epimere umbilical bottom of flexible control umbilical 30
End connect with the umbilical connector on 40 top of rigid protective pipe, epimere umbilical top and be located at 25 deck of dry type production platform control
Center 23 connects.
So far, a kind of to be installed under water from tension type production conveying riser systems.
When the present invention repairs, dry type tree 22 only supports the shaft mouth operation of production phase, corresponding dry type workover treatment
Flexible control umbilical 30 and flexible production standpipe 31 will must be recycled when progress, then change rigid production riser 41, re-established
The contact channel of internal layer floating drum 6 and dry type production platform 25.
The present invention is not limited to the present embodiment, any equivalent concepts in the technical scope of present disclosure or changes
Become, is classified as protection scope of the present invention.
Claims (8)
1. a kind of producing conveying riser systems from tension type under water, it is characterised in that：Including production riser component, control standpipe group
Part, combination floating drum (15) and mooring gear (14)；
The production riser component includes flexible production standpipe (31) and rigid production riser (41), the control standpipe group
Part includes rigid protective pipe (40) and flexible control umbilical (30), and the combination floating drum (15) includes internal layer floating drum (6) and outer
Layer floating drum (1)；The multiple internal layer floating drums (6) of setting in the outer layer floating drum (1)；
Described outer layer floating drum (1) main body is cylindrical structure, and it is floating that outer layer floating drum (1) outer wall lower edge connects four cantilevers
Cylinder, four cantilever floating drums are evenly distributed, and radially, cantilever floating drum end uses truss cantilever (2), truss cantilever (2)
Outer end connects mooring cable, and outer layer floating drum (1) is by four mooring cable moorings in the pile foundation of sea bed (21)；Outer layer floating drum (1)
Multiple cylindrical channels (3) are inside vertically arranged, for installing multiple internal layer floating drums (6)；Cylindrical channel (3) inner wall is circumferentially equal
The vertical slideway (4) of cloth four, slideway (4) run through entire cylindrical channel (3) inner wall；Inner wall between adjacent two slideway (4)
Center highly locates that limit body A (5) is arranged from outer layer floating drum (1) bottom end 1/3；
Described internal layer floating drum (6) main body is cylindrical structure, and outer diameter is less than the diameter of cylindrical channel (3), internal layer floating drum
(6) outer wall is uniformly distributed along the circumference four vertical bossy bodies (7), and bossy body (7) width B1 is less than the slideway in cylindrical channel (3)
(4) width B, bossy body (7) and internal layer floating drum (6) are contour；The bossy body (7) is located at the cunning in cylindrical channel (3)
In road (4)；Outer wall center between adjacent two bossy body (7), from being provided with limit at 1/2 height of internal layer floating drum (6) bottom end
Body B (8), limit body B (8) are matched with the limit body A (5) in the cylindrical channel (3), limitation internal layer floating drum (6) with it is outer
The relative vertical motion of layer floating drum (1)；
The top of the rigid production riser (41) pass through internal layer floating drum (6) standpipe channel (9), and with internal layer floating drum (6)
Top connects；The bottom end connection stress joint (42) of the rigid production riser (41), the bottom end connection of stress joint (42)
Subsea wellheads globe valve (45)；The well head globe valve (45) (43) oral with submarine well is connect, and integrated control module A
(46)；The well head globe valve (45) in the operating condition, with rigid production riser (41) unicom；In case of emergency rotate
90 degree, close the interface channel of rigid production riser (41) and submarine well oral (43)；The flexible production standpipe (31)
Bottom end is connect with rigid production riser (41) top, and top and the dry type tree (22) of the flexible production standpipe (31) connect
It connects；The dry type tree (22) is located on the deck of dry type production platform (25)；
The top of the rigid protective pipe (40) passes through the standpipe channel (9) of internal layer floating drum (6), and is pushed up with internal layer floating drum (6)
Portion connects；The flexible control umbilical (30) is made of epimere umbilical and hypomere umbilical, and the rigid protective pipe (40) is
Hypomere umbilical provides installation and protection channel；Umbilical connector is arranged in described rigid protective pipe (40) top, and epimere umbilical is under
Section umbilical is connected by umbilical connector；Rigid protective pipe (40) bottom end is connect with stress joint (42), stress joint
(42) bottom end is connect with control module B (47), and the bottom end of control module B (47) is fixed on rigid protective pedestal tube (44)；
The flexible control umbilical (30) carries out down-hole pressure and temperature information acquisition, control for controlling underground chemical reagent injection
The closure of storm valve processed and the closure of control well head globe valve (45)；The top of the flexible control umbilical (30) with
Control centre (23) connection, its bottom end are connect across rigid protective pipe (40) with control module B (47)；The control centre
(23) it is located on the deck of dry type production platform (25)；
The outer layer floating drum (1) is connect with mooring gear (14)；
It is connect by fly line (48) between the control module A (46) and control module B (47), the fly line (48) is letter
Number cable.
2. a kind of produced under water from tension type according to claim 1 conveys riser systems, it is characterised in that：The control
One group of two to four group of correspondence production riser component of riser assemblies processed.
3. a kind of produced under water from tension type according to claim 1 conveys riser systems, it is characterised in that：The group
It closes floating drum (15) and is immersed in 30~200m depths under sea (20).
4. a kind of produced under water from tension type according to claim 1 conveys riser systems, it is characterised in that：Described is convex
Going out the setting of body (7) front, there are two drum apparatus, are located at two trisection height of the positive long side of bossy body (7), institute
The drum apparatus stated is made of roller (10), shaft (11) and bearing (12), and shaft (11) axis is perpendicular to bossy body (7) side
Face, bearing (12) length is equal with the positive width B1 of bossy body (7), and roller (10) is mounted on bearing (12) by shaft (11)
On；Roller (10) is in rolling contact with slideway (4) bottom surface.
5. a kind of produced under water from tension type according to claim 1 conveys riser systems, it is characterised in that：Described is outstanding
Arm floating drum is rectangular section cantilever floating drum.
6. a kind of produced under water from tension type according to claim 1 conveys riser systems, it is characterised in that：The cunning
The cross section in road (4) is rectangular section；The cross section of the bossy body (7) is rectangular section.
7. a kind of produced under water from tension type according to claim 1 conveys riser systems, it is characterised in that：The limit
Position body A (5) is cuboid, has 4 in each cylindrical channel (3), circumferentially uniformly distributed along cylindrical channel (3) inner wall, and is located
At cylindrical channel (3) inner wall sustained height；The limit body B (8) is cuboid, has 4 on each internal layer floating drum (6)
It is a, it is circumferentially uniformly distributed along internal layer floating drum (6) outer wall, and be at internal layer floating drum (6) outer wall sustained height；When internal layer floating drum (6) and
When the center of outer layer floating drum (1) etc. is high, there are 1 to 2 meter of spacing between limit body B (8) and limit body A (5).
8. a kind of installation method producing conveying riser systems from tension type under water, it is characterised in that：Include the following steps：
A, preparation work：
A1, outer layer floating drum (1) lifting is placed on semi-submerged ship main deck, then internal layer floating drum (6) is hung to cylindrical channel (3)
Surface, the position of adjustment internal layer floating drum (6) and angle, until four bossy bodies (7) of internal layer floating drum (6) are respectively aligned to cylinder
Four slideways (4) on shape channel (3), among internal layer floating drum (6) decentralization to cylindrical channel (3)；
A2, A1 step operations are repeated, is sequentially completed the in place of all internal layer floating drums (6)；Internal layer floating drum (6) and outer layer floating drum (1)
Combination is completed on the coast, constitutes combination floating drum (15)；
B, the in place and sinking of combination floating drum (15)：
B1, combination floating drum (15) is towed into infield using semi-submerged ship, each workboat is in place；Connect on outer layer floating drum (1)
The hawser and anchor chain of conventional installation exercise method are connect, semi-submerged ship pressurization is carried underwater heavy and opened from combination floating drum (15) floats on sea
On face (20)；
B2 while the water filling into each internal layer floating drum (6) ballast tank, internal layer floating drum (6) slowly sink under the effect of gravity, until
Four limit body B (8) on internal layer floating drum (6) contact with four limit body A (5) on outer layer floating drum (1) respectively；Continue to each
A internal layer floating drum (6) ballast tank is filled to design flow, when the ballast water of the design flow makes internal layer floating drum (6) submerge in water completely
Its gravity G1Still greater than buoyancy F1, in the process outer layer floating drum (1) under the towing of each internal layer floating drum (6) with internal layer floating drum
(6) stopping is sunk down into slowly together, and combination floating drum (15) floats on sea (20)；
It is filled to design flow in B3, outer layers floating drum (1) ballast tank, the ballast water of the design flow so that outer layer floating drum (1) is complete
Its buoyancy F when submerging in water2More than gravity G2, in the process outer layer floating drum (1) under the towing of each internal layer floating drum (6) with
Internal layer floating drum (6) sinks slowly together until outer layer floating drum (1) submerges in water completely；
B4, when combine floating drum (15) submerge in water completely when, stress in the vertical direction is：Outer layer floating drum (1) floats
Power F2More than its gravity G2, the gravity G of internal layer floating drum (6)1More than its buoyancy F1, and the sum of the net buoyancy of all internal layer floating drums (6)
N(G1-F1) it is more than the net buoyancy F of outer layer floating drum (1)2-G2, wherein N is internal layer floating drum (6) number, i.e. N (G1-F1)>(F2-G2)；
Under this stressing conditions, internal layer floating drum (6) can pull outer layer floating drum (1) and stablize, under this stressing conditions, internal layer
Floating drum (6) can pull outer layer floating drum (1) and stablize, and limit body B (8) and limit body A (5) closely connects in sinking watching
It touches, outer layer floating drum (1) does not have relative motion with internal layer floating drum (6)；
C, the underwater installation of combination floating drum (15)：
After combination floating drum (15) sinks down into target depth, truss cantilever (2) and corresponding mooring gear (14) of outer layer floating drum (1)
Connection, is positioned at sea bed (21)；Outer layer floating drum (1) is filled with compressed gas, and outer layer floating drum (1) floats, and is tensioned mooring cable；Herein
In the process, limit body A (5) and limit body B (8) interacts, work of the internal layer floating drum (6) in outer layer floating drum (1) limit body A (5)
With lower common floating；
D, the underwater installation of rigid production riser (41) and rigid protective pipe (40)
D1, rigid production riser (41) is installed one by one：Rigid production riser (41) is lifted by dry type production platform (25), is made just
The bottom end of property production riser (41) passes through the standpipe channel (9) of corresponding internal layer floating drum (6) and well head globe valve (45) and submarine well
Oral (43) connection, rigid production riser (41) top are connect with the top of internal layer floating drum (6)；
D2, first the hypomere umbilical of flexible control umbilical (30) is mounted on by umbilical connector in rigid protective pipe (40), then led to
Dry type production platform (25) lifting rigid protective pipe (40) is crossed, the bottom end of rigid protective pipe (40) is made to pass through corresponding internal layer floating drum
(6) standpipe channel (9) and control module B (47) connect with rigid protective pedestal tube (44), the top of rigid protective pipe (40)
It is connect with the top of internal layer floating drum (6)；
Nitrogen is injected in D3, inner layer floating drum (6), internal layer floating drum (6) is made to float along slideway (4), while it is vertical to be tensioned rigidity production
(41) and rigid protective pipe (40) are managed, internal layer floating drum (6) is floating to design position, i.e., in internal layer floating drum (6) and outer layer floating drum (1)
The heart is contour, and there are 1 to 2 meter of spacing between limit body B (8) and limit body A (5)；
E, the underwater installation of flexible production standpipe (31) and flexible control umbilical (30)
E1, flexible production standpipe (31) is lifted by dry type production platform (25), makes flexible production standpipe (31) bottom end and rigidity
The connection of production riser (41) top, flexible production standpipe (31) top and the dry type on dry type production platform (25) deck are adopted
Oil tree (22) connection；
E2, flexible control umbilical (30) is lifted by dry type production platform (25), makes the epimere umbilical of flexible control umbilical (30)
Bottom end connect with the umbilical connector on rigid protective pipe (40) top, epimere umbilical top be located at dry type production platform (25) deck
Control centre (23) connection；
So far, a kind of to be installed under water from tension type production conveying riser systems.
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| CN108547583B (en) * | 2018-03-13 | 2019-05-31 | 海洋石油工程股份有限公司 | The installation method of the production riser of self-elevating drilling platform |
| CN111218958A (en) * | 2020-03-03 | 2020-06-02 | 无锡东方船研水环境科技有限公司 | Triple pipeline buoy |
| CN112832719A (en) * | 2020-12-24 | 2021-05-25 | 海洋石油工程股份有限公司 | Protection device of integrated underwater equipment and installation method thereof |
| CN116336310B (en) * | 2023-02-28 | 2024-09-17 | 中国地质调查局油气资源调查中心 | Carbon dioxide seabed sealing device and method |
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| US4585373A (en) * | 1985-03-27 | 1986-04-29 | Shell Oil Company | Pitch period reduction apparatus for tension leg platforms |
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| KR20150099062A (en) * | 2014-02-21 | 2015-08-31 | 대우조선해양 주식회사 | Mobile type tension leg platform |
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| US4585373A (en) * | 1985-03-27 | 1986-04-29 | Shell Oil Company | Pitch period reduction apparatus for tension leg platforms |
| CN1063082A (en) * | 1990-12-10 | 1992-07-29 | 国际壳牌研究有限公司 | Carry out the method and system of offshore well operation |
| CN201961509U (en) * | 2010-06-09 | 2011-09-07 | 中国海洋石油总公司 | Unconditional stability equipped deep-draft floating oil production platform |
| EP2905215A1 (en) * | 2012-10-08 | 2015-08-12 | Iberdrola Ingeniería Y Construcción, S.A.U. | Tension-leg floating platform that is particularly suitable for harnessing wind energy |
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